Synergistic stabilizer mixture
Stabilizer mixture comprising, for example, a compound of the formula ##STR1## and, for example, a compound of the formula ##STR2##
Latest Ciba Specialty Chemicals Corporation Patents:
Claims
1. A stabilizer mixture comprising at least two different compounds from the group consisting of components a), b), c), d), e), f), g) and k), where
- component a) is at least one compound of the formula a-I-1 or a-I-3, ##STR62## in which R.sub.1 is methyl, octyl or cyclohexyl; component b) is at least one compound of the formula b-II, ##STR63## in which R.sub.9 is as defined for R.sub.1; component c) is at least one compound of the formula c-V, ##STR64## in which R.sub.9 is as defined above; component d) is at least one compound of the formula d-VI- 1, d-VI-2 or d-VI-3, ##STR65## in which R.sub.10 is as defined for R.sub.1 and n.sub.2 is a number from 2 to 25;
- component e) is at least one compound of the formula e-VII, ##STR66## in which R.sub.18 is as defined for R.sub.1 and n.sub.3 is a number from 1 to 25;
- component f) is a product obtainable by reacting a product, obtained by reaction between a polyamine of the formula
- component k) is at least one compound of the formula k-XIII, ##STR70## in which R.sub.41 is as defined for R.sub.1 and n.sub.7 is a number from 1 to 25.
2. A stabilizer mixture according to claim 1, comprising at least one compound of component a) and at least one compound of component b), c), d), e), f), g), or k).
3. A stabilizer mixture according to claim 1, comprising at least one compound of component a) and at least one compound of component b), c), d), e), f), or g).
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
3640928 | February 1972 | Murayama |
3925376 | December 1975 | Chalmers et al. |
4086204 | April 25, 1978 | Cassandrini et al. |
4108829 | August 22, 1978 | Cassandrini et al. |
4110334 | August 29, 1978 | Mayer et al. |
4331586 | May 25, 1982 | Hardy |
4340534 | July 20, 1982 | Wiezer et al. |
4356307 | October 26, 1982 | Kelkenberg et al. |
4408051 | October 4, 1983 | Hinsken et al. |
4477615 | October 16, 1984 | Raspanti et al. |
4529760 | July 16, 1985 | Feistner et al. |
4689416 | August 25, 1987 | Ertt et al. |
4692486 | September 8, 1987 | Gugumus |
4857595 | August 15, 1989 | Kaymierzak et al. |
4863981 | September 5, 1989 | Gugumus |
4957953 | September 18, 1990 | Kikkawa et al. |
5021485 | June 4, 1991 | Gugumus |
5051458 | September 24, 1991 | Castanzi et al. |
5182390 | January 26, 1993 | Sagawa et al. |
5204473 | April 20, 1993 | Winter et al. |
5439959 | August 8, 1995 | Rassamtt |
0252877 | January 1988 | EPX |
0309402 | March 1989 | EPX |
0345220 | December 1989 | EPX |
0432495 | June 1991 | EPX |
0449685 | October 1991 | EPX |
0491659 | June 1992 | EPX |
0632092 | January 1995 | EPX |
262439 | November 1988 | DEX |
4317672 | December 1993 | DEX |
5879033 | May 1983 | JPX |
2267499 | December 1993 | GBX |
9212201 | July 1992 | WOX |
9412544 | June 1994 | WOX |
9422946 | October 1994 | WOX |
- Chem. Abst. 100: 104558n. Chem. Abst. 109:941995m. Chem. Abst. 120:324950n. CHem. Abst. 125:277237b. Derw. Abst 89-122983/17 of DD 262,439, Nov. 30, 1988. Chem. Abst. 111:58964u of DD 262,439, Nov. 30, 1988. Derw. Abst. 94-177274/22 of DE 4239437 & WO94/12544, May 26, 1994. Materials Safety Data Sheet 136504-96-6, Nov. 1, 1993. Research Disclosure, Jan. 1993 No. 345.
Patent History
Patent number: 5919399
Type: Grant
Filed: Jul 15, 1996
Date of Patent: Jul 6, 1999
Assignee: Ciba Specialty Chemicals Corporation (Tarrytown, NY)
Inventor: Fran.cedilla.ois Gugumus (Allschwil)
Primary Examiner: Kriellion S. Morgan
Attorney: Luther A. R. Hall
Application Number: 8/680,077
Type: Grant
Filed: Jul 15, 1996
Date of Patent: Jul 6, 1999
Assignee: Ciba Specialty Chemicals Corporation (Tarrytown, NY)
Inventor: Fran.cedilla.ois Gugumus (Allschwil)
Primary Examiner: Kriellion S. Morgan
Attorney: Luther A. R. Hall
Application Number: 8/680,077
Classifications
Current U.S. Class:
Oxygen Organic Compound Containing (252/403);
252/40031
International Classification: C09K 1522;
International Classification: C09K 1522;